@charset:"utf-8";
*{
  margin:0;
  padding:0;
  font-family:"微软雅黑";
}
a{
  text-decoration:none;
}
li{
  list-style:none;
}
.clearfix:after{
  content:"";
    height:0;
    line-height:0;
    display:block;
    visibility:hidden;
    clear:both;
}
.clearfix{
  zoom:1;
}
.container{
  width:1200px;
  margin:0 auto;
}
.header{
  width:100%;
  height:80px;
  background:#000;
}
.header .logo{
  margin-left:20px;
  float:left;
}
.header .logo img{
  display:block;
  height:80px;
}
.header .nav{
  float:right;
  margin-right:20px;
  color:#fff;
}
.header .nav li{
  position:relative;
  float:left;
  list-style:none;
  font-size:16px;
  line-height:80px;
}
.header .nav li a{
  display:block;
  padding:0 10px;
  text-decoration:none;
  color:#fff;
}
.header .nav li:hover a{
   color:#ff6700;
}
.header .nav li:hover .dropdown{
  display:block;
  background:#fff;
}
.header .nav li .dropdown{
  position:absolute;
  display:none;
  z-index:999;
  top:80px;
  left:0;
  border:1px solid #e5e5e5;
  transition:all .5s;
}
.dropdown a{
  width:100px;
  text-align:center;
  display:block;
  padding:0 10px;
  font-size:16px;
  line-height:50px;
}
.dropdown a:hover{
  background:#5f5750;
  color:#fff;
}
.dropdown a+a{
  border-top:1px solid #fdfdfd;

}
.origin{
  width:1200px;
  margin:0 auto;
  display:flex;
  margin-top:20px;
  justify-content: space-between;
}
.origin .item{
  width:260px;
  padding:10px;
  opacity:0;
}
.origin .active{
   -webkit-animation:up 1s forwards;
   transform:translateY(50px);
}
.origin .active:nth-child(2){
  -webkit-animation-delay:.2s;
}
.origin .active:nth-child(3){
  -webkit-animation-delay:.4s;
}
.origin .active:nth-child(4){
  -webkit-animation-delay:.6s;
}
.origin .item .s_Img{
  width:100%;
  height:200px;
  overflow:hidden;
}
.origin .item .s_Img img{
  width:100%;
}
.origin .item .title{
  position:relative;
  width:100%;
  font-size:16px;
  line-height:50px;
  border-bottom:1px solid #dcdcdc;
}
.origin .title:after{
  content:'';
  position:absolute;
  top:51px;
  left:0;
  width:10px;
  height:1px;
  background:#555;
  transition:all .5s ease;
}
.origin .desc{
  width:100%;
  font-size:14px;
  line-height:20px;
  padding:10px 0;
  color:#8d8d8d;
}
.origin .item:hover{
  box-shadow: 0 2px 5px 3px #dcdcdc;
}
.origin .item:hover .title:after{
  width:100%;
  background:#00c981;
}
.origin .item:hover .title{
  color:#00c981;
}
.bottom{
  width:1160px;
  margin:0 auto;
  padding:20px;
}
.bottom img{
  margin:20px;
  display:block;
  float:left;
}
.bottom h3{
  line-height:50px;
}
.bottom p{
  font-size:16px;
  color:#8d8d8d;
  padding:10px;
}
@keyframes up{
  from{transform:translateY(50px);}
  to{transform:translateY(0px);opacity:1;}
}